| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
|---|
| Outline of Final Research Achievements |
In the present study, the bactericidal effect and influence on the denture base-resin of denture cleaning technique using a newly developed device based on photolysis of hydrogen peroxide were evaluated. The device consisted of ultrasound cleaning bath and high power LED. Bactericidal test showed that the photolysis of hydrogen peroxide killed Streptococcus mutans with a >5-log reduction of viable counts within 3 min. Regarding the influence of the cleaning technique on the resin material, it was found that the strength and color were affected as the irradiance of LED increased. However, the results suggest that the influence may be acceptable when the LED was used at an irradiance of 10 mW/cm2 even on the assumption of repeated denture cleanings.
|
